问题
填空题
比较大小: -(-5)______-(+6); -2______
-
|
答案
∵-(-5)=5>0,-(+6)=-6<0,
∴-(-5)>-(+6);
∵-2<0,
>0,1 3
∴-2<
;1 3
∵|-
|=8 9
=8 9
<|-80 90
|=9 10
=9 10
,81 90
∴-
>-8 9
.9 10
故答案为:>,<,>.
比较大小: -(-5)______-(+6); -2______
-
|
∵-(-5)=5>0,-(+6)=-6<0,
∴-(-5)>-(+6);
∵-2<0,
>0,1 3
∴-2<
;1 3
∵|-
|=8 9
=8 9
<|-80 90
|=9 10
=9 10
,81 90
∴-
>-8 9
.9 10
故答案为:>,<,>.